lovely singh
5 Answer(s) 3 months ago
Posted in : Java Beginners
import java.io.*;
import java.util.*;
class test1
{
public static void main( String args[])throws IOException
{
Console con= System.console();
String fname;
System.out.println("enter the file name");
fname=con.readLine();
File f1 = new File(fname);
if(!f1.exists())
{
System.out.println("Source file doesnot exists");
System.exit(0);
}
FileInputStream fis = new FileInputStream(fname);
int ch;
StringTokenizer st = new StringTokenizer(str);
int count=0;
while(st.hasMoreTokens())
{
HashSet Set = new HashSet();
if(Set.contains(st.nextToken()))
count++;
}
System.out.println("no of words"+count);
fis.close();
}
}
February 20, 2013 at 2:59 PM
Program : by HashSet and StringTokenizer
import java.io.BufferedReader; import java.io.File;
import java.io.FileReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.HashSet; import java.util.Iterator; import java.util.StringTokenizer;
public class WordCount {
public static void main(String args[]) {
BufferedReader br=null;
try{
br=new BufferedReader(new InputStreamReader(System.in));
//Reading file name from console
System.out.println("Enter file name");
String fileNam=br.readLine();
File file=new File(fileNam);
// Reading the search words from console and stored in HashSet
HashSet<String> hSet=new HashSet<String>();
boolean flag=true;
while(flag) {
System.out.println("Enter word to search in given file(to stop words enter exit)");
String word=br.readLine().trim();
if(word.equalsIgnoreCase("exit"))
break;
hSet.add(word);
}
// checking given file is available or not
if(file.exists()) {
String fileContent="";
//Reading total content from file and append to fileContent variable
BufferedReader bReader=new BufferedReader(new FileReader(file));
String line=null;
while((line=bReader.readLine())!=null)
fileContent+=line;
bReader.close();
//Reading the search words from HashSet and searching each word in fileContext
Iterator<String> iterator=hSet.iterator();
while(iterator.hasNext()) {
// it is a HashSet word
String str=iterator.next();
int count=0;
// split the fileContent with space delimiter
StringTokenizer tokenizer=new StringTokenizer(fileContent," ");
while(tokenizer.hasMoreTokens()) {
if(str.equals(tokenizer.nextToken()))
count++;
}
System.out.println(str+" word is repeated "+count+" time in given file");
}
}
}catch(Exception exception) {
exception.printStackTrace();
}
finally {
if(br!=null)
try {
br.close();
} catch (IOException exception) {
exception.printStackTrace();
}
}
}
}
If you want develop above program with HashMap read the words from console based on key and value(ex:first=java) and store in HashMap and read the values from HashMap and search the words in file content.
February 20, 2013 at 2:59 PM
Program : by HashSet and StringTokenizer
import java.io.BufferedReader; import java.io.File;
import java.io.FileReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.HashSet; import java.util.Iterator; import java.util.StringTokenizer;
public class WordCount {
public static void main(String args[]) {
BufferedReader br=null;
try{
br=new BufferedReader(new InputStreamReader(System.in));
//Reading file name from console
System.out.println("Enter file name");
String fileNam=br.readLine();
File file=new File(fileNam);
// Reading the search words from console and stored in HashSet
HashSet<String> hSet=new HashSet<String>();
boolean flag=true;
while(flag) {
System.out.println("Enter word to search in given file(to stop words enter exit)");
String word=br.readLine().trim();
if(word.equalsIgnoreCase("exit"))
break;
hSet.add(word);
}
// checking given file is available or not
if(file.exists()) {
String fileContent="";
//Reading total content from file and append to fileContent variable
BufferedReader bReader=new BufferedReader(new FileReader(file));
String line=null;
while((line=bReader.readLine())!=null)
fileContent+=line;
bReader.close();
//Reading the search words from HashSet and searching each word in fileContext
Iterator<String> iterator=hSet.iterator();
while(iterator.hasNext()) {
// it is a HashSet word
String str=iterator.next();
int count=0;
// split the fileContent with space delimiter
StringTokenizer tokenizer=new StringTokenizer(fileContent," ");
while(tokenizer.hasMoreTokens()) {
if(str.equals(tokenizer.nextToken()))
count++;
}
System.out.println(str+" word is repeated "+count+" time in given file");
}
}
}catch(Exception exception) {
exception.printStackTrace();
}
finally {
if(br!=null)
try {
br.close();
} catch (IOException exception) {
exception.printStackTrace();
}
}
}
}
If you want develop above program with HashMap read the words from console based on key and value(ex:first=java) and store in HashMap and read the values from HashMap and search the words in file content.
February 21, 2013 at 4:45 PM
hi friend,
please go through the link, may this will be helpful for you
http://roseindia.net/java/example/java/core/java-word-occurrence-example.shtml
February 21, 2013 at 5:00 PM
thank you all.. but can i have the solution program code by not using the concept of generic class...??
February 21, 2013 at 5:06 PM
moreover hashmap class should also be used.. i need a program which is encoded using all these three classes hashmap, hashset and streamtokenizer. please help me out..
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